Mechanistic Study of the Role of Primary Amines in Precursor Conversions to Semiconductor Nanocrystals at Low Temperature |
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| Authors: | Dr. Kui Yu Dr. Xiangyang Liu Queena Y. Chen Prof. Huaqing Yang Prof. Mingli Yang Xinqin Wang Prof. Xin Wang Dr. Hong Cao Dr. Dennis M. Whitfield Prof. Changwei Hu Dr. Ye Tao |
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| Affiliation: | 1. Key Laboratory of Green Chemistry and Technology, Ministry of Education, Sichuan University, Chengdu 610065 (P. R. China);2. National Research Council of Canada, Ottawa, ON, K1A 0R6 (Canada) |
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| Abstract: | Primary alkyl amines (RNH2) have been empirically used to engineer various colloidal semiconductor nanocrystals (NCs). Here, we present a general mechanism in which the amine acts as a hydrogen/proton donor in the precursor conversion to nanocrystals at low temperature, which was assisted by the presence of a secondary phosphine. Our findings introduce the strategy of using a secondary phosphine together with a primary amine as new routes to prepare high‐quality NCs at low reaction temperatures but with high particle yields and reproducibility and thus, potentially, low production costs. |
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| Keywords: | amines colloidal quantum dots nanocrystal precursor conversions phosphines semiconductor particles |
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